Does Time alignment and Phase coherency make for a better loudspeaker?

Using vandersteen speakers. They are a pain in placement. But when you got it right the time aligent/phase coherent design is gorgeous. About 5 years go i measured/corrected them (for most my horrible Room acoustics) with Mathaudio Room EQ (incombination with Foobar 2000 for free) sound wise, it Raised them to another higher level esspecialy in imaging which they already did well. In 45 years time investing in a measuring mic of less than 100,- euro is the best audio investment i did in 45 years time.

the powered KEF 50 use DSP to correct the passive KEF 50 impulse response...somebody at KEF thought that a worthwhile thing to invest effort into....hmmmmmmmmm....

Ever hear a group of unamplified musicians playing spread apart on a stage...anywhere? No phase or time allignment occurs. Hmmm...

Ever hear a group of unamplified musicians playing spread apart on a stage...anywhere? No phase or time allignment occurs. Hmmm...

Not true...
For instance, say a single French horn player is playing a note that has the fundamental in the woofer, and harmonics in the midrange, and even higher harmonics in the tweeter.

Do you want those harmonics to all be related to each other?

Or do you want the midrange to have the phase flipped?

the powered KEF 50 use DSP to correct the passive KEF 50 impulse response...somebody at KEF thought that a worthwhile thing to invest effort into....hmmmmmmmmm....

All the DIRAC like systems doing phase and time correction make for a largely time and phase coherent system.

I suppose DIRAC would not exist, outside of the physics and math useage, if the majority of speakers had nice impulse response right out of the box?